<?php

namespace app\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use app\models\SocialworkModel;

/**
 * SocialworkSearch represents the model behind the search form about `app\models\SocialworkModel`.
 */
class SocialworkSearch extends SocialworkModel
{
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['stu_id', 'stu_name', 'organization', 'position', 'start_time', 'end_time', 'remark'], 'safe'],
        ];
    }

    /**
     * @inheritdoc
     */
    public function scenarios()
    {
        // bypass scenarios() implementation in the parent class
        return Model::scenarios();
    }

    /**
     * Creates data provider instance with search query applied
     *
     * @param array $params
     *
     * @return ActiveDataProvider
     */
    public function search($params)
    {
        $query = SocialworkModel::find();

        // add conditions that should always apply here

        $dataProvider = new ActiveDataProvider([
            'query' => $query,
        		'pagination' => [
        				'pageSize' => 1000,
        		],
        ]);

        $this->load($params);

        if (!$this->validate()) {
            // uncomment the following line if you do not want to return any records when validation fails
            // $query->where('0=1');
            return $dataProvider;
        }

        // grid filtering conditions
        $query->andFilterWhere(['like', 'stu_id', $this->stu_id])
            ->andFilterWhere(['like', 'stu_name', $this->stu_name])
            ->andFilterWhere(['like', 'organization', $this->organization])
            ->andFilterWhere(['like', 'position', $this->position])
            ->andFilterWhere(['like', 'start_time', $this->start_time])
            ->andFilterWhere(['like', 'end_time', $this->end_time])
            ->andFilterWhere(['like', 'remark', $this->remark]);

        return $dataProvider;
    }
}
